U.S. says some healthcare emails sought by Congress are missing

A top U.S. healthcare official involved in the botched rollout of the website HealthCare.gov may have deleted some emails that were later sought by Republican congressional investigators, administration officials said on Thursday. The emails were from a public email account maintained by Marilyn Tavenner, who heads the Centers for Medicare and Medicaid Services (CMS), the Department of Health and Human Services (HHS) agency chiefly responsible for implementing President Barack Obama's healthcare reform law. An administration official, who spoke on condition of anonymity, attributed the potential loss to "sloppy record keeping". Some House Republicans have raised questions about congressional testimony from Tavenner and other administration officials who predicted before the rollout that HealthCare.gov would launch successfully.